[.Net之C#常用实例]开发笔记一

1.计算当前时间和目标时间的时间间隔

using System;
using System.Collections.Generic;
using System.Text;

namespace ConsoleApp1
{
    public class Program
    {
        static void Main(string[] args)
        {
            DateTime now = DateTime.Now;
            DateTime tar = new DateTime(2024, 11, 19, 12, 0, 0);
            TimeSpan ts = tar.Subtract(now);
            Console.WriteLine($"当前时间：{now.ToString()}");
            Console.WriteLine($"目标时间：{tar.ToString()}");
            Console.WriteLine($"获取以整分钟数和分钟的小数部分表示:{ts.TotalMinutes}");
            Console.WriteLine($"获取以整秒数和秒的小数部分表示:{ts.TotalSeconds}");
            Console.ReadKey(true);
        }
    }
}

 2.获取屏幕尺寸

this.width = Screen.PrimaryScreen.Bounds.Width;//屏幕宽度
this.height = Screen.PrimaryScreen.Bounds.Height;//屏幕高度

 3.将两个字符串组合成一个路径

string path = @"e:\abcd";
string filename = Path.Combine(path,"zx.txt");

输出：e:\abcd\zx.txt

4.解析域名对应的ipv6或ipv4地址

IPAddress ipv4 = Dns.GetHostAddresses("cnblogs.cn")[0];
IPAddress ipv6 = Dns.GetHostAddresses("cnblogs.cn")[1];

 5.获取运行应用程序的存储路径

Console.WriteLine(AppDomain.CurrentDomain.BaseDirectory);